JP2003175781A - Electric connection box for vehicle and car-mounted gateway - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric connection box for a vehicle which can reduce wire harnesses, decrease noises emitted from the wire harnesses and can simplify wiring. <P>SOLUTION: This electric connection box 13 for a vehicle is for connecting the wire harnesses W/H1 and W/H2 wired to each of a plurality of equipment 2a, 3, 4 and 6 through 11 in the vehicle to each other through a bus bar (not shown). A car-mounted gateway 5a for connecting a plurality of networks Ba and Bb and intermediating commands and data between the connected networks Ba and Bb is built in and integrally formed. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle electrical junction box for connecting wire harnesses (wiring harnesses) respectively wired to a plurality of devices in a vehicle, and a plurality of LANs (Local Area Networks; Network) and mediates commands and data between the connected networks.

[0002]

2. Description of the Related Art An electric junction box for a vehicle is a wiring part for a vehicle called a junction block, and is used for a driver's seat and a passenger's seat in a vehicle.
Side) or in the engine room to connect the wiring harnesses wired to the floor, instrument panel, roof, engine room, etc., to simplify the wiring inside the vehicle. . In addition, a fuse is incorporated to provide a protection function when the wire harness is short-circuited, and a relay and an electronic circuit are incorporated to control the body (body) system unit such as a wiper, a door lock and a power window. There are also things.

In general, inside a junction block, an insulating material made of resin is interposed between a plurality of bus bars (metal plate-shaped wiring materials), and a part of the bus bar is bent 90 degrees to form a junction. It forms the male connector part of the block and is connected to the wire harness.

The vehicle-mounted gateway serves as a bridge when communication is carried out between a plurality of LANs mounted on the vehicle and having different communication systems and different communication speeds. For example, car audio devices connected to a vehicle manufacturer standard LAN and open system LAN (consumer equipment standard; IE
EE1394, USB, etc.), bring the digital video playback device into the vehicle, connect it to an open LAN, and play back using a monitor connected to the vehicle manufacturer's standard LAN. Manufacturer's standard LA
A vehicle-mounted gateway that connects N and an open LAN and performs data transfer, protocol conversion, buffering, authentication, etc. is required.

FIG. 6 is a block diagram showing a connection configuration of a conventional junction block and a vehicle-mounted gateway. The junction block 1 is connected with a wire harness W / H1 including wiring of a power supply system for supplying the power supplied from the power supply unit 18 to the television 6 and the navigation 7. In addition, ECU (Electronic
Control Units) 2 and loads 4, etc., and a wire harness W including wiring of a power supply system and wiring of a control system for switching signals of switches 3, sensor signals, etc.
/ H2 is connected. The junction block 1 also incorporates a fuse (not shown) for protecting the wire harnesses W / H1 and W / H2, and a controller for controlling a body (vehicle body) system unit (not shown).

[0006] The vehicle-mounted gateway 5 (gateway) has a bus Ba for transmitting / receiving data to / from the television 6 and the navigation 7 by a vehicle maker to publish specifications and allowing a user to freely connect / disconnect devices. , A mobile phone connection device 8 for connecting a mobile phone 12, a display 9 such as a fuel gauge, a speaker 10, and a speedometer 1.
A bus Bb, whose specifications are not disclosed by the vehicle manufacturer, is connected for transmitting / receiving data to / from the first and the like. The mobile phone connection device 8, the display 9, the speaker 10, the speedometer 11 and the like are supplied with power from the wire harness W / H2.

Each of the buses Ba and Bb is, for example, IEEE13.
High-speed data transmission is possible using 94. The junction block 1 and the gateway 5 are connected by a wire harness W / H3, and the gateway 5 is
Junction block 1 and wire harness W / H3
Power is being supplied through.

In the junction block 1 and the gateway 5 having such a connection structure, the power supplied by the power supply unit 18 is supplied to the television 6, the navigation 7, etc. through the wire harness W / H1. Also,
The power supplied by the power supply unit 18 is supplied to the wire harness W.
It is supplied to the ECUs 2, the loads 4, the mobile phone connection device 8, the display 9, the speaker 10, the speedometer 11 and the like through / H1 and W / H2. Power to each electric device is turned on / off by a power switch (3) attached to an ignition switch (ignition switch) not shown or a power switch for each electric device.

The control signals such as the switching signals of the switches 3 and the sensor signals are transmitted and received between the ECUs 2 and the loads 4 through the wire harness W / H2. The gateway 5 transmits and receives data to and from the television 6 and the navigation 7 connected to the bus Ba and the mobile phone connection device 8, the display 9, the speaker 10 and the speedometer 11 connected to the bus Bb. , Bridge that. For example, when the sound of the television 6 is output from the speaker 10, the bus B
The audio data suitable for the network on the side a is transferred to the bus Bb
It is converted into audio data suitable for the local network and transmitted to the speaker 10 via the bus Bb.

[0010]

A wire harness W / H3 is necessary for the connection between the conventional junction block 1 and the gateway 5 described above, and the more wire harnesses there are, the more noise radiated from the wire harnesses increases. In addition, there is a problem that the wiring becomes complicated.

As a technique related to such a problem,
"Electrical junction box for multiplex communication" in which a junction block and a multiplex communication unit are integrated is disclosed in Japanese Patent Laid-Open No. 2001-204.
Although disclosed in Japanese Patent Publication No. 127, the electrical connection box for multiplex communication assumes a low-speed body electronics network such as a door ECU, an air conditioner ECU, and an engine control ECU, and image transmission including an in-vehicle gateway. Etc. are not related to possible high speed networks.

The present invention has been made in view of the above-mentioned circumstances. In the first to eighth inventions, the wire harness can be reduced and the noise radiated from the wire harness can be reduced. Another object of the present invention is to provide an electric junction box for a vehicle, which can simplify wiring. It is an object of the ninth to thirteenth inventions to provide a vehicle-mounted gateway that does not require a wire harness between a vehicle electrical junction box and a vehicle-mounted gateway, reduces noise radiated from the wire harness, and can simplify wiring. And

[0013]

According to a first aspect of the present invention, there is provided a vehicular electrical junction box for interconnecting wire harnesses respectively wired to a plurality of devices in a vehicle via a bus bar. In the above, a vehicle-mounted gateway that mediates commands and data between a plurality of connected networks is built in and integrally formed.

In this electric connection box for a vehicle, wire harnesses respectively wired to a plurality of devices in the vehicle are connected to each other via a bus bar. An in-vehicle gateway built in and formed integrally mediates commands and data between a plurality of connected networks. As a result, it is possible to reduce the number of wire harnesses, reduce the noise radiated from the wire harnesses, and realize an electric junction box for a vehicle that can simplify wiring.

An electric junction box for a vehicle according to a second aspect of the present invention is characterized in that the on-vehicle gateway is formed on a printed circuit board and the bus bar is soldered to a printed circuit of the printed circuit board.

In this vehicle electrical junction box, the on-vehicle gateway is formed on the printed circuit board, and the bus bar is soldered to the printed circuit of the printed circuit board. Therefore, the wire harness can be reduced. The radiated noise can be reduced and the wiring can be simplified.

An electric junction box for a vehicle according to a third aspect of the present invention further includes a control unit for controlling the plurality of devices and controlling ON / OFF of power supply to the plurality of devices, the control unit being one of the in-vehicle gateways. It is characterized in that it is integrated with the control unit.

In this electric connection box for a vehicle, the control unit controls a plurality of devices and controls ON / OFF of power supply to the plurality of devices, and the control unit is configured integrally with the control unit of the vehicle-mounted gateway. Therefore, the wiring harness can be reduced, the noise radiated from the wiring harness can be reduced, and the wiring can be simplified. Further, the control unit peripheral circuit (CPU monitoring circuit, clock circuit, etc.) and the case can be shared.

The electric junction box for a vehicle according to a fourth aspect of the invention is characterized in that the vehicle-mounted gateway includes an instruction means for instructing on / off of power supply to a device connected to the network.

In this vehicle electrical junction box, the in-vehicle gateway can reduce the number of wire harnesses because the instructing means instructs the power supply to the devices connected to the network to be turned on / off. The radiated noise can be reduced and the wiring can be simplified. Also, after the in-vehicle gateway is activated, the device connected to the network can be turned on, and it is possible to prevent the device from starting communication and causing an error when the transmission path is not established. It will be possible. Moreover, after stopping each device and confirming that each device has stopped, the power supply to each device can be turned off, so that each device can be stopped in a normal state.

In the electric connection box for a vehicle according to the fifth aspect of the invention, the control unit detects means for turning on the power switch, and when the means detects that the power switch is turned on, Means for activating the vehicle-mounted gateway, and after the means activates the vehicle-mounted gateway, the instructing means is arranged to instruct to turn on power supply to a device connected to the network. Characterize.

In this electric connection box for a vehicle, the control unit starts when the detecting means detects that the power switch is turned on, and when the detecting means detects that the power switch is turned on. The means for activating activates the in-vehicle gateway. The instructing unit instructs to turn on the power supply to the device connected to the network after the inactivating unit activates the vehicle-mounted gateway. Thereby, the wiring harness can be reduced, the noise radiated from the wiring harness can be reduced, and the wiring can be simplified. Also, after the in-vehicle gateway is activated, the device connected to the network can be turned on, and it is possible to prevent the device from starting communication and causing an error when the transmission path is not established. It will be possible.

In the vehicle electrical junction box according to the sixth aspect of the present invention, the control unit further comprises means for detecting that the power switch is turned off, and the vehicle-mounted gateway has the means for turning off the power switch. When it detects that
Further comprising means for instructing the devices connected to the network to stop, and means for determining whether or not all of the devices have stopped, and when the means determines that all of the devices have stopped, The instructing means is configured to instruct to turn off the power supply to the device.

In this electric junction box for a vehicle, the control unit detects that the power switch is turned off, and when the detection means detects that the power switch is turned off, the control unit is mounted on the vehicle. In the gateway, the instructing unit instructs the device connected to the network to stop, and the determining unit determines whether or not all the devices have stopped.
When the determining means determines that all the devices have stopped, the instructing means instructs to turn off the power supply to the devices.
Thereby, the wiring harness can be reduced, the noise radiated from the wiring harness can be reduced, and the wiring can be simplified. Also, stop each device,
After confirming that each device has stopped, the power supply to each device can be turned off, so that each device can be stopped in a normal state.

The electric junction box for a vehicle according to the seventh aspect of the present invention includes a wire harness wired to a plurality of devices in the vehicle,
An electric connection box for a vehicle, which is connected to each other via a bus bar, is characterized by including a connector for connecting to an in-vehicle gateway that mediates commands and data between a plurality of connected networks.

In this electric connection box for a vehicle, wire harnesses respectively wired to a plurality of devices in the vehicle are connected to each other via a bus bar. The connector is connected to the vehicle-mounted gateway, and the vehicle-mounted gateway mediates commands and data between a plurality of connected networks. Thereby, the wiring harness can be reduced, the noise radiated from the wiring harness can be reduced, and the wiring can be simplified. Further, by preparing a small number of vehicle electrical connection boxes and vehicle-mounted gateways respectively, it is possible to realize a large number of vehicle electrical connection boxes integrated with the vehicle-mounted gateway. When a failure occurs, only the vehicle electrical junction box including the failed part or the vehicle-mounted gateway needs to be replaced, so the replacement cost should be reduced compared to a vehicle electrical junction box with a built-in vehicle-mounted gateway. Can be done.

The vehicle electrical junction box according to the eighth aspect of the invention is characterized in that when it is connected to the vehicle-mounted gateway by the connector, it is formed integrally with the vehicle-mounted gateway.

In this vehicle electrical connection box, when it is connected to the vehicle-mounted gateway by the connector, it is formed integrally with the vehicle-mounted gateway, so that the required space is reduced and the wire harness can be reduced. The result is that the noise radiated from the wire harness can be reduced and the wiring can be simplified.

An on-vehicle gateway according to a ninth aspect of the invention is an on-vehicle gateway for intermediating commands and data between a plurality of connected networks, for use in a vehicle for mutually connecting wire harnesses respectively wired to a plurality of devices in a vehicle. It is characterized by having a connector for connecting to an electric junction box.

This on-vehicle gateway mediates commands and data between a plurality of connected networks. The connector is connected to the vehicle electrical junction box, and the vehicle electrical junction box interconnects the wire harnesses respectively wired to the plurality of devices in the vehicle. This eliminates the need for a wire harness between the vehicle electrical junction box and the vehicle-mounted gateway, reduces noise emitted from the wire harness, and realizes a vehicle-mounted gateway that can simplify wiring. Further, by preparing a small number of vehicle electrical connection boxes and vehicle-mounted gateways respectively, it is possible to realize a large number of vehicle-mounted gateways integrated with the vehicle electrical connection box. When a failure occurs, only the vehicle electrical junction box including the failed part or the vehicle-mounted gateway needs to be replaced, so the replacement cost should be reduced compared to a vehicle electrical junction box with a built-in vehicle-mounted gateway. Can be done.

The on-vehicle gateway according to the tenth aspect of the invention is characterized in that when it is connected to the vehicle electrical junction box by the connector, it is formed integrally with the vehicle electrical junction box.

In this vehicle-mounted gateway, when it is connected to the vehicle electrical junction box by the connector, it is formed integrally with the vehicle electrical junction box, so the space required is reduced and the wire harness is reduced. The noise emitted from the wire harness can be reduced, and the wiring can be simplified.

An on-vehicle gateway according to an eleventh aspect of the invention is to turn on / off the power supply to devices connected to the network.
It is characterized by comprising an instruction means for instructing to turn off.

In this vehicle-mounted gateway, the instruction means is
Instructing to turn on / off the power supply to the devices connected to the network reduces the required space, reduces the wire harness, and reduces the noise radiated from the wire harness. Wiring can be simplified. Also, after the in-vehicle gateway is started,
It is possible to turn on the device connected to the network and prevent a situation in which the device starts communication and causes an error when the transmission path is not established. Moreover, after stopping each device and confirming that each device has stopped, the power supply to each device can be turned off, so that each device can be stopped in a normal state.

The on-vehicle gateway according to the twelfth invention further comprises means for detecting that the power switch is turned on, and after the means detects that the power switch is turned on, the instructing means is activated, It is characterized in that the power supply to the device connected to the network is turned on.

In this vehicle-mounted gateway, the detecting means detects that the power switch has been turned on, and after the detecting means detects that the power switch has been turned on, the instructing means activates to connect to the network. Instructing to turn on the power supply to the connected equipment reduces the required space, reduces the wiring harness, reduces the noise radiated from the wiring harness, and simplifies the wiring. I can. Also, after the in-vehicle gateway is activated, the device connected to the network can be turned on, and it is possible to prevent the device from starting communication and causing an error when the transmission path is not established. It will be possible.

The vehicle-mounted gateway according to the thirteenth aspect of the present invention includes means for detecting that the power switch has been turned off, and, when the means has detected that the power switch has been turned off, instructs the device to stop. Means, and means for determining whether or not all of the equipment has stopped, the means comprising:
When it is determined that all the devices have stopped, the instructing means is configured to instruct to turn off the power supply to the devices.

In this vehicle-mounted gateway, the detecting means detects that the power switch has been turned off, and when the detecting means detects that the power switch has been turned off, the instructing means connects to the network. Instruct the stopped device to stop. The determining unit determines whether or not all the devices have stopped, and when the determining unit determines that all of the devices have stopped, the instructing unit instructs to turn off the power supply to the device. As a result, the required space is reduced, the wire harness can be reduced, the noise radiated from the wire harness can be reduced, and the wiring can be simplified. Moreover, after stopping each device and confirming that each device has stopped, the power supply to each device can be turned off, so that each device can be stopped in a normal state.

[0039]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below with reference to the drawings showing the embodiments thereof. Embodiment 1. 1 is a block diagram showing a connection configuration of an integrated junction block which is a first embodiment of a vehicle electrical junction box according to the present invention. The integrated junction block 13 has a junction block section 1a and a gateway section 5a (vehicle-mounted gateway) built therein, and the junction block section 1a and the gateway section 5a are connected by an in-device wiring 35.

A wire harness W / H1 including wiring of a power supply system for supplying the power supplied from the power supply unit 18a to the television 6 and the navigation 7 is connected to the junction block unit 1a. Also, the ECU
(Electronic Control Units) 2a and a wire harness W / H2 including wiring for a power supply system for supplying power to a load 4 such as a motor, and wiring for a control system such as switching signals and sensor signals of switches Has been done.

The gateway 5a has a television 6
And for sending and receiving data to and from the navigation 7, etc.,
A bus Ba that allows the vehicle manufacturer to disclose specifications and allows the user to freely connect / disconnect devices, a mobile phone connection device 8 for connecting the mobile phone 12, a display 9 such as a fuel gauge,
A bus Bb for transmitting / receiving data to / from the speaker 10, the speedometer 11 and the like, the specification of which is not disclosed by the vehicle manufacturer, is connected. The mobile phone connection device 8, the display 9, the speaker 10, the speedometer 11, etc.
Power is supplied from the wire harness W / H2.

Each of the buses Ba and Bb is, for example, IEEE13.
High-speed data transmission is possible using 94. The gateway unit 5a is supplied with electric power from the junction block unit 1a through the in-device wiring 35 without passing through the power supply unit 18a.

FIG. 2 shows the integrated junction block 13
3 is a block diagram showing the configuration of FIG. The integrated junction block 13 is connected to the connectors 20, 21, 22 for connecting to a wire harness, the connectors 23, 24 for buses for performing high-speed data communication, and the connectors 23, 24 for performing high-speed data communication. High-speed data transmission unit 19
And the wire harness W connected to the connectors 20 and 22.
/ H1 and W / H2, the circuit connection unit 17 including a relay for connecting / disconnecting the wirings, and the high-speed data transmission unit 19
And a control unit 16 including a microcomputer that controls the circuit connection unit 17. The control unit 16 includes the control unit of the junction block unit 1a and the gateway unit 5
The control unit of a is integrated.

The integrated junction block 13 is also connected to the connectors 20 and 22 and has a wire harness W.
/ H1 and W / H2 included in the wire harness W / H1 and W / H2, which is connected to the circuit connection portion 14 including a bus bar and a PCB (printed circuit board) that connect between the power supply lines and the connectors 20 and 22. And a harness protector 15 including a fuse connected between the power supply lines.

FIG. 3 shows an integrated junction block 13
FIG. 3 is an exploded view schematically showing the configuration of FIG. The housing of the integrated junction block 13 has a plate-like rectangular parallelepiped shape, and includes an upper case 25 and a lower case 26. The two cases 25, 26 are fitted to each other by a lock mechanism 28. Connectors 20 and 21 are provided on the upper surface of the upper case 25 so as to project therefrom.

On the surface of a PCB 30 (printed circuit board) provided inside, a microcomputer 16 which is a control unit and a driver IC 19 which is a high speed data transmission unit are mounted to form a gateway unit 5a. PCB3
On the back side of 0, connectors 23 and 24 for high speed data communication
Is provided. The connectors 23 and 24 are inserted into the through holes 23 a and 24 a provided in the lower case 26, respectively, and project from the lower surface of the lower case 26.

In the junction block portion 1a provided above the PCB 30, an insulator 27 is interposed between a plurality of bus bars 29 (metal plate wiring members). Each end of the bus bar 29 is bent upward or downward by 90 degrees, and the ends bent upward are fitted in the connectors 20 and 21 as male terminals. The ends bent downward are inserted into the through holes provided in the PCB 30 and soldered to the circuit on the PCB 30.

The operation of the integrated junction block 13 having such a configuration will be described below. In the integrated junction block 13, the power supplied by the power supply unit 18a is supplied to the television 6, the navigation 7, etc. through the wire harness W / H1. Further, the power supplied by the power supply unit 18a is supplied to the wire harness W / H.
1, W / H2, and supplies to the ECUs 2a, the loads 4, the mobile phone connection device 8, the display 9, the speaker 10, the speedometer 11, and the like.

Control system signals such as switching signals of the switches 3 and sensor signals are transmitted and received between the ECUs 2a and the loads 4 and the like through the wire harness W / H2. The high-speed data transmission unit 19 and the control unit 16 are
A television 6 and a navigation 7 connected to the bus Ba, a mobile phone connection device 8 connected to the bus Bb,
Display 9, speaker 10 and speedometer 11
When sending and receiving data to and from, etc., it acts as a bridge. For example, when the sound of the television 6 is output from the speaker 10, the audio data compatible with the network on the bus Ba side is converted into the audio data compatible with the network on the bus Bb side, and the speaker 10 is transmitted through the bus Bb.
Transmit to.

FIG. 4 is a flowchart showing the operation of the integrated junction block 13 when the power switch (3) attached to an ignition switch (ignition switch) not shown is turned on and turned off. Integrated Junction Block 13 (Integrated J
B), when the power switch (3) is turned on (S
1), the control unit 16 is activated (S2).

Upon activation (S2), the control unit 16 first activates the high speed data transmission unit 19 (S3), and then turns on the power supply unit 18a (S4). When the power supply unit 18a is turned on, the power supply unit 1
Each electric device supplied with power from 8a is turned on or can be turned on. The control unit 16 and the high-speed data transmission unit 19 then perform address assignment, creation of a topology map, bandwidth reservation, service information collection, etc. to initialize high-speed data communication (S5).

When the power switch (3) attached to an ignition switch (ignition switch) (not shown) is turned off (S10), the control unit 16 gives an instruction to disconnect the high-speed data communication and sends the high-speed data transmission unit 19 to it. Stop (S
11) Then, turn off each electric device (S1)
2). The control unit 16 turns off each electric device (S1
2) is confirmed (S13), the power supply unit 18a
After turning off (S14), it stops (S15).

As described above, since the control units of the junction block unit 1a and the gateway unit 5a are integrated, when the power switch (3) is turned on, after the high speed data transmission unit 19 is activated. It is possible to turn on each electric device and prevent a situation in which the electric device starts communication and causes an error when the transmission path is not established. Further, when the power switch (3) is turned off, it is possible to turn off the power supply unit 18a after disconnecting communication, stop each electric device, confirm that each electric device has stopped. As a result, each electric device can be stopped in a normal state.

Embodiment 2. FIG. 5 is an exploded view schematically showing the configuration of an integrated junction block that is Embodiment 2 of the vehicle electrical junction box according to the present invention. In this integrated junction block 13a, the junction block portion 1b and the gateway portion 5b are housed in separate housings, and the junction block portion 1b and the gateway portion 5b are connected to the connector 31,
It is connected by 31a.

The housing for housing the gateway 5b is
It has a plate-like rectangular parallelepiped shape and includes an upper case 32 and a lower case 33. PCB3 provided inside
On the surface of 0a (printed circuit board), a microcomputer 16a which is a control unit, a driver IC 19 which is a high speed data transmission unit, a connector 23 for high speed data communication,
24 are installed. A female connector 31a for connecting to the junction block portion 1b is provided on the back surface of the PCB 30a.

The connectors 23 and 24 are inserted into the through holes 23a and 24a provided in the upper case 32, respectively.
It is provided so as to project from the upper surface of the upper case 32. Lower case 3
A terminal hole 31b through which the terminal 31 (male connector) of the junction block portion 1b is inserted is formed in a portion of the connector 3 facing the female connector 31a.

The housing 34 accommodating the junction block portion 1b has a plate-like rectangular parallelepiped shape, and a recess 36 for fitting the housings 32 and 33 of the gateway portion 5b is provided on the upper surface. . The terminal 31 (male connector) of the junction block portion 1b is provided on the bottom of the recess 36 so as to pass through the terminal hole 31b.
As described above, by connecting the female connector 31a of the lower case 33 and the terminal 31 (male connector), the housing 34 of the junction block portion 1b and the housings 32, 33 of the gateway portion 5b are integrally formed. Has become. Other configurations and operations are the same as the configurations and operations of the integrated junction block described in the first embodiment, and therefore description thereof is omitted. However, the respective control units of the junction block unit 1b and the gateway unit 5b do not have to be integrated, and accordingly, the operation is performed in the first embodiment.
The operation is not limited to the operation described in.

[0058]

According to the vehicle electrical junction box of the first and second aspects of the present invention, the wire harness can be reduced, the noise radiated from the wire harness can be reduced, and the wiring can be simplified. It is possible to realize an electric connection box for a vehicle. Further, the CPU (Central Processing Unit) for controlling the body electronics system and the CPU of the vehicle-mounted gateway, which are conventionally built in or connected to the electric junction box for a vehicle, can be configured by 1 CPU. Peripheral circuits (CPU monitoring circuit, clock circuit, etc.) and housing can be shared. Also,
Since the number of housings is changed from two to one, mounting on a vehicle is facilitated and man-hours can be reduced. Further, the weight can be reduced by integrating the parts and reducing the wire harness.

According to the vehicle electrical junction box of the third invention, the wire harness can be reduced, the noise radiated from the wire harness can be reduced, and the wiring can be simplified. Further, the control unit peripheral circuit (CPU monitoring circuit, clock circuit, etc.) and the case can be shared. Moreover, since the number of housings is changed from two to one, mounting on a vehicle is facilitated, and the number of steps can be reduced.
Further, the weight can be reduced by integrating the parts and reducing the wire harness.

According to the vehicle electrical junction box of the fourth aspect of the present invention, the wire harness can be reduced, the noise radiated from the wire harness can be reduced, and the wiring can be simplified. Also, after the in-vehicle gateway is activated, the device connected to the network can be turned on, and it is possible to prevent the device from starting communication and causing an error when the transmission path is not established. It will be possible. Moreover, after stopping each device and confirming that each device has stopped, the power supply to each device can be turned off, so that each device can be stopped in a normal state.

According to the vehicle electrical junction box of the fifth invention, the wire harness can be reduced, the noise radiated from the wire harness can be reduced, and the wiring can be simplified. Also, after the in-vehicle gateway is activated, the device connected to the network can be turned on, and it is possible to prevent the device from starting communication and causing an error when the transmission path is not established. It will be possible.

According to the vehicle electrical junction box of the sixth aspect of the present invention, the wire harness can be reduced, the noise radiated from the wire harness can be reduced, and the wiring can be simplified. Moreover, after stopping each device and confirming that each device has stopped, the power supply to each device can be turned off, so that each device can be stopped in a normal state.

According to the vehicle electrical junction box of the seventh aspect of the present invention, the wire harness can be reduced, the noise radiated from the wire harness can be reduced, and the wiring can be simplified. Further, by preparing a small number of vehicle electrical connection boxes and vehicle-mounted gateways respectively, it is possible to realize a large number of vehicle electrical connection boxes integrated with the vehicle-mounted gateway. When a failure occurs, only the vehicle electrical junction box including the failed part or the vehicle-mounted gateway needs to be replaced, so the replacement cost should be reduced compared to a vehicle electrical junction box with a built-in vehicle-mounted gateway. Can be done.

According to the vehicle electrical junction box of the eighth aspect of the invention, the required space is reduced, the wire harness can be reduced, the noise radiated from the wire harness can be reduced, and the wiring can be simplified. I can.

According to the vehicle-mounted gateway according to the ninth aspect of the invention, a wire harness between the vehicle electrical junction box and the vehicle-mounted gateway is unnecessary, noise radiated from the wire harness is reduced, and wiring can be simplified. A gateway can be realized. Further, by preparing a small number of vehicle electrical connection boxes and vehicle-mounted gateways respectively, it is possible to realize a large number of vehicle-mounted gateways integrated with the vehicle electrical connection box. When a failure occurs, only the vehicle electrical junction box including the failed part or the vehicle-mounted gateway needs to be replaced, so the replacement cost should be reduced compared to a vehicle electrical junction box with a built-in vehicle-mounted gateway. Can be done.

According to the vehicle-mounted gateway of the tenth aspect of the present invention, the required space is reduced, the wiring harness can be reduced, the noise radiated from the wiring harness can be reduced, and the wiring can be simplified. .

According to the vehicle-mounted gateway of the eleventh aspect of the invention, the required space is reduced, the wire harness can be reduced, the noise radiated from the wire harness can be reduced, and the wiring can be simplified. .
Also, after the in-vehicle gateway is activated, the device connected to the network can be turned on, and it is possible to prevent the device from starting communication and causing an error when the transmission path is not established. It will be possible. Moreover, after stopping each device and confirming that each device has stopped, the power supply to each device can be turned off, so that each device can be stopped in a normal state.

According to the vehicle-mounted gateway of the twelfth invention, the required space is reduced, the wiring harness can be reduced, the noise radiated from the wiring harness can be reduced, and the wiring can be simplified. .
Also, after the in-vehicle gateway is activated, the device connected to the network can be turned on, and it is possible to prevent the device from starting communication and causing an error when the transmission path is not established. It will be possible.

According to the vehicle-mounted gateway of the thirteenth invention, the required space is reduced, the wiring harness can be reduced, the noise radiated from the wiring harness can be reduced, and the wiring can be simplified. .
Moreover, after stopping each device and confirming that each device has stopped, the power supply to each device can be turned off, so that each device can be stopped in a normal state.

[Brief description of drawings]

FIG. 1 is a block diagram showing a connection configuration of an integrated junction block which is an embodiment of a vehicle electrical junction box according to the present invention.

FIG. 2 is a block diagram showing a configuration of an integrated junction block.

FIG. 3 is an exploded view schematically showing the configuration of an integrated junction block.

FIG. 4 is a flowchart showing the operation of an integrated junction block.

FIG. 5 is an exploded view schematically showing the configuration of an integrated junction block that is an embodiment of the vehicle electrical junction box according to the present invention.

FIG. 6 is a block diagram showing a connection configuration of a conventional junction block and a vehicle-mounted gateway.

[Explanation of symbols]

1a, 1b Junction block part 2a ECUs 4 Loads 5a, 5b Gateway part (vehicle-mounted gateway) 6 Television 9 Display 10 Speakers 13, 13a Integrated junction block (vehicle electrical junction box) 14, 17 Circuit connection part 15 Harness protection Parts 16, 16a control part (microcomputer) 18a power supply part 19 driver IC (high-speed data transmission part) 20, 21, 22, 23, 24 connectors 25, 32 upper case 26, 33 lower case 29 bus bar 30, 30a PCB ( Printed circuit board) 31 terminal (male connector, connector) 31a female connector (connector) 31b terminal hole 34 housing 35 in-device wiring Ba, Bb bus W / H1, W / H2 wire harness

Claims (13)

[Claims] 1. A vehicle electrical connection box for connecting wire harnesses respectively wired to a plurality of devices in a vehicle to each other via a bus bar, and an in-vehicle device that mediates commands and data between a plurality of connected networks. An electric junction box for vehicles, which has a built-in gateway and is integrally formed. 2. The electric junction box for a vehicle according to claim 1, wherein the on-vehicle gateway is formed on a printed circuit board, and the bus bar is soldered to a printed circuit of the printed circuit board. 3. A control unit for controlling the plurality of devices and controlling ON / OFF of power supply to the plurality of devices is further provided, and the control unit is integrated with a control unit of the vehicle-mounted gateway. The electric junction box for vehicle according to 1 or 2. 4. The vehicle electrical junction box according to claim 1, wherein the vehicle-mounted gateway includes an instruction unit for instructing on / off of power supply to a device connected to the network. 5. The control unit comprises means for detecting that the power switch is turned on, and means for activating the vehicle-mounted gateway when the means detects that the power switch is turned on. 5. The electric junction box for a vehicle according to claim 4, wherein the instruction means is adapted to instruct to turn on the power supply to the device connected to the network after the means activates the vehicle-mounted gateway. 6. The control unit further comprises means for detecting that the power switch is turned off, and the in-vehicle gateway, when the means detects that the power switch has been turned off, the network. Further comprises means for instructing the equipment connected to the device to stop, and means for determining whether or not all of the equipment have stopped, and when the means determines that all of the equipment have stopped, the instructing means The electric connection box for a vehicle according to claim 4 or 5, wherein the power supply to the device is turned off. 7. A vehicle electrical connection box for connecting wire harnesses respectively wired to a plurality of devices in a vehicle to each other via a bus bar, and an in-vehicle device that mediates commands and data between a plurality of connected networks. An electric junction box for a vehicle, comprising a connector for connecting to a gateway. 8. The electric junction box for a vehicle according to claim 7, wherein when the connector is connected to the vehicle-mounted gateway, it is formed integrally with the vehicle-mounted gateway. 9. An in-vehicle gateway for connecting a plurality of networks and for relaying commands and data between the connected networks, and an electric connection for a vehicle for mutually connecting wire harnesses respectively wired to a plurality of devices in the vehicle. An in-vehicle gateway having a connector for connecting to a box. 10. The vehicle-mounted gateway according to claim 9, wherein when the connector is connected to the vehicle electrical junction box, the vehicle electrical gateway is formed integrally with the vehicle electrical junction box. 11. The vehicle-mounted gateway according to claim 9, further comprising an instruction unit for instructing on / off of power supply to a device connected to the network. 12. The apparatus further comprises means for detecting that the power switch is turned on, and after the means detects that the power switch is turned on, the instructing means is activated and connected to the network. The vehicle-mounted gateway according to claim 11, which is configured to instruct to turn on the power supply to the device. 13. A means for detecting that the power switch is turned off, a means for instructing the device to stop when the power switch is turned off, and all the devices. Means for determining whether or not the equipment has stopped, and when the means determines that all of the equipment has stopped, the instructing means is for instructing to turn off the power supply to the equipment. The vehicle-mounted gateway according to claim 11 or 12.